


var bld = [{
    "height": 137,
    "polygon": [
        [103.04003,30.009584],
        [103.040481,30.009941],
        [103.040963,30.009519],
        [103.040454,30.009064],
        [103.040041,30.009505],
        [103.040078,30.009537]
    ]},{
    "height": 142,
    "polygon": [
        //[103.0402555, 30.0097625],
        //[103.040722, 30.00973],
        //[103.0407085, 30.0092915],
        //[103.040242, 30.009324],
        [103.04024875, 30.00954325],
        [103.04048875000001, 30.00974625],
        [103.04071525, 30.00951075],
        [103.04047525, 30.009307749999998]
    ]}, {
    "height": 137,
    "polygon": [
        [103.040674,30.010032],
        [103.041103,30.010376],
        [103.041378,30.01006],
        [103.041351,30.010033],
        [103.041103,30.010311],
        [103.040718,30.009997]
    ]}, {
    "height": 100,
    "polygon": [
        [103.040972,30.01197],
        [103.041385,30.012267],
        [103.041498,30.012249],
        [103.041551,30.012235],
        [103.041648,30.01217],
        [103.041793,30.01203],
        [103.041267,30.011557],
        [103.040961,30.011975]
    ]}, {
    "height": 100,
    "polygon": [
        [103.03999,30.011185],
        [103.040301,30.010934],
        [103.040741,30.011287],
        [103.040468,30.011552]
    ]}, {
    "height": 80,
    "polygon": [
        [103.032892, 30.005655],
        [103.032914, 30.005686],
        [103.032945, 30.005692],
        [103.032965, 30.005697],
        [103.033000, 30.005688],
        [103.033009, 30.005686],

        [103.033019, 30.005725],
        [103.032977, 30.005737],
        [103.032958, 30.005737],
        [103.032891, 30.005722],
        [103.032862, 30.005683],
        [103.032891, 30.005657]
    ]}, {
    "height": 30,
    "polygon": [
        [103.032911, 30.005634],
        [103.032930, 30.005655],
        [103.032954, 30.005660],
        [103.032971, 30.005660],
        [103.033002, 30.005646],
        [103.033044, 30.005752],
        [103.033021, 30.005758],
        [103.032942, 30.005769],
        [103.032902, 30.005756],
        [103.032826, 30.005708],
        [103.032887, 30.005633]
    ]}, {
    "height": 40,
    "polygon": [
        [103.032731, 30.005625],
        [103.032655, 30.005447],
        [103.032726, 30.005383],
        [103.032804, 30.005581]
    ]}


];